More and more women are using therapies to replace hormonal disorders, and this seems to be the reason for lower breast cancer rates, reports WebMD Medical News.
Specialists say there are fewer and fewer cases of breast cancer because more and more women are doing routine mammograms. Without them, they add, breast cancer could go unnoticed.
Other researchers believe that this decrease is due to the fact that since 2002 many women prefer to use other than menopausal hormonal treatments.
The new study favors a second theory, considering that mammograms were not an effective method of preventing cancer.
Data were collected from over 600,000 women between the ages of 50 and 69 who performed mammograms between 1997 and 2003.
The bottom line was that non-hormonal treatments reduced the sensitivity of breast cancer to estrogen. Given that patients who had mammograms were analyzed, these results appear to be correct.
Although experts say the results are plausible, the issue is highly controversial and remains open to discussion.
August 16, 2007